The Federal Communications Commission (FCC) has granted a total of 26 licenses and call signs in the category of Amateur license in Cardiff, California. Select a call sign from the table below to view its details such as the date of authorization, expiration date, service description, and so forth.
| Call Sign | License Holder Name | Date of Authorization |
|---|---|---|
| KB6ESS | SPENCER, NORMA L | 2014-03-06 |
| KE6BUG | UEHLING, PETER T | 2013-06-27 |
| KE6ELA | ANDREWS, JOHN E | 2015-12-30 |
| KE6KAJ | BERGAN, CHARLES A | 2015-07-07 |
| KG6NRT | Brown, Ryan A | 2012-12-20 |
| KI6FTM | WRIGHT, TIMOTHY S | 2016-08-19 |
| KI6MBI | MISHLER, THOMAS L | 2007-10-11 |
| KJ6IXE | Fritz, William T | 2020-04-15 |
| KJ6KGH | Hall, Bruce N | 2020-06-16 |
| KJ6TOW | Tedesco, Carl E | 2012-01-23 |
| KK6FRH | McGraw, John P | 2013-07-19 |
| KK6HUY | Rushing, William B | 2013-11-18 |
| KK6KDF | Pollock, Erik | 2014-03-03 |
| KK6ZRA | Reis, Ronald M | 2015-12-31 |
| KM6DIH | Eddy, Kathleen A | 2016-06-08 |
| KM6KWI | Musil, Erik J | 2017-06-05 |
| KM6PUB | Kosty, Michael P | 2018-01-30 |
| KN6AWW | Amador-Lynch, Christian | 2019-04-02 |
| KN6KCI | Fletcher, Trinna V | 2020-07-30 |
| KN6NPI | Worthington, James W | 2021-03-01 |
| KN6OFG | Turner, Blake D | 2021-04-01 |
| KN6OQU | Kremicki, Jeffery | 2021-05-03 |
| KN6PYC | O'Reilly, Richard | 2021-08-09 |
| N0GWI | LEACH, STEVEN G | 2016-03-07 |
| N6RHE | MRAZ, EDWIN E J | 2017-07-14 |
| W6PNF | BADGEROW, ROBERT J | 2007-08-28 |
